package org.example.weibo.base.interceptor;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpSession;
import org.example.weibo.base.response.StatusCode;
import org.example.weibo.pojo.vo.UserVO;
import org.springframework.web.servlet.HandlerInterceptor;

public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        HttpSession session = request.getSession();
        UserVO userVO = (UserVO) session.getAttribute("user");
        if (userVO == null) {
            throw new NullPointerException(StatusCode.NOT_LOGIN.getMessage());
        }
        return true;
    }
}
